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Southern Georgian Bay

Forecast

Marine Forecast

Issued 03:00 AM EST 16 January 2026

Today Tonight and Saturday.

Wind variable 10 knots increasing to southeast 15 this morning then veering to south 20 early this evening. Wind veering to southwest 15 overnight then increasing to southwest 25 Saturday afternoon.

Flurries. Visibility 1 mile or less in flurries.

Waves

Issued 03:00 AM EST 16 January 2026
Today Tonight and Saturday. Over open water waves 0.5 metres or less building to 0.5 to 1 near noon and to 1 to 1.5 this evening. Waves subsiding to 0.5 to 1 Saturday morning then building to 1 to 1.5 Saturday evening.

Extended Forecast

Issued 03:00 AM EST 16 January 2026
Sunday Wind southwest 25 knots diminishing to west 15 in the morning then increasing to southwest 25 late in the day.
Monday Wind southwest 25 knots veering to west 30.
Tuesday Wind northwest 20 knots backing to southwest 20 late in the day.

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Weather Conditions

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Map of Great Lakes - Lake Erie and Lake Ontario marine weather areas Harrow AAFC Burlington Lift Bridge Oshawa Executive Airport Point Pelee Peterborough Municipal Airport Point Petre Hamilton Munro Int'l Airport Erieau Cobourg Toronto City Centre Airport Port Colborne CFB Trenton South Lake Huron - 45149 Windsor Airport Great Duck Island Gore Bay-Manitoulin Airport North Bay Airport Greater Sudbury Airport Killarney Sault Ste. Marie Airport Ajax - 45159 North Channel - 45154 Lake Nipissing - 45152 Lake Simcoe - 45151 Welland-Pelham Lake St Clair - 45147 South Georgian Bay - 45143 Port Colborne - 45142 Grimsby - 45139 Georgian Bay - 45137 Prince Edward Point - 45135 Port Stanley - 45132 Vineland Station Brockville Grenadier Island Kingston Airport Collingwood Lagoon City Muskoka Airport Parry Sound Harbour Lake Simcoe Regional Airport Wiarton Airport Cove Island Goderich Sarnia Chris Hadfield Airport Western Islands Tobermory Long Point Port Weller St. Catharines / Niagara District Airport Southeast Shoal
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land station Land Station
Ice Conditions

*Ice Forecast and Warnings also apply to U.S. waters

Ice Forecasts

Issued 12:00 PM EDT 16 May 2025 Forecasts have ended for the season.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EST 16 January 2026 Today Tonight and Saturday At 3:00 a.m. EST today departing low 989 mb located over New
Brunswick.

At 3:00 a.m. EST today ridge located on a line north-south over
Lake Erie.
By 3:00 a.m. EST Saturday ridge located on a line
northwest-southeast over Quebec.

At 3:00 a.m. EST today low 994 mb located over northwestern Ontario.
By 3:00 a.m. EST Saturday low 1006 mb located over northeastern
Upper Michigan.

Great Lakes - Lake Erie and Lake Ontario Area

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